#3 Nate Diaz
Back when Rafael Dos Anjos pulled out of his fight against Conor at UFC 196, no one would have expected that it would give birth to an epic rivalry between Conor McGregor and Nate Diaz. Despite the obvious weight difference between the two, they seem to be the perfect opponents for each other.
Nate was the one who handed McGregor his first and only loss in UFC. The Notorious One earned his revenge by defeating Nate in a brutal five-round war at UFC 202.
Their score currently stands at 1-1. Their rematch at UFC 202 is considered as one of the best fights of the year. As seen in their post-fight interview, both Conor and Nate are willing to have a go at it once again. The rivalry between the two has been epic, and the world deserves to see it culminate with a trilogy.